Overview
The AD8217BRMZ is a high-resolution, high-voltage current shunt amplifier produced by Analog Devices Inc. This device is designed for precise current monitoring in various industrial and telecommunications applications. It features a set gain of 20 V/V and operates within a wide input common-mode voltage range of 4.5 V to 80 V. The AD8217BRMZ includes an internal low-dropout regulator (LDO) that allows it to power directly from the high voltage rail, eliminating the need for an additional supply. The device is known for its excellent common-mode rejection and zero-drift architecture, ensuring high accuracy and stability over a broad temperature range of -40°C to 125°C.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer / Brand | ADI (Analog Devices, Inc.) |
| Part Number | AD8217BRMZ |
| Category | Integrated Circuits (ICs) > PMIC - Current Regulation/Management |
| Voltage - Input | 4.5 V ~ 80 V |
| Supplier Device Package | 8-MSOP |
| Sensing Method | High-Side |
| Operating Temperature | -40°C ~ 125°C |
| Mounting Type | Surface Mount |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| Function | Current Monitor |
| Accuracy | ±0.1% |
| Gain Error | ±0.35% (max) |
| Common-Mode Rejection Ratio (CMRR) | 100 dB (typical at dc) |
Key Features
- High-resolution current shunt amplifier with a set gain of 20 V/V.
- Internal LDO allows the device to power directly from the high voltage rail, eliminating the need for an additional supply.
- Excellent common-mode rejection from 4.5 V to 80 V, with a typical CMRR of 100 dB at dc.
- Zero-drift architecture providing high accuracy and stability over a broad temperature range.
- Buffered output voltage directly interfaces with any typical converter.
- High accuracy with a typical offset drift of ±100 nV/°C and a typical input offset voltage of ±100 μV.
Applications
- High side current sensing in industrial and telecommunications systems.
- 48 V telecom power management.
- Base stations.
- Unidirectional motor control.
- Precision high voltage current sources.
- Battery management.
- Base station power amplifier bias control.
Q & A
- What is the primary function of the AD8217BRMZ?
The AD8217BRMZ is a high-resolution current shunt amplifier designed for precise current monitoring. - What is the input voltage range of the AD8217BRMZ?
The input voltage range is from 4.5 V to 80 V. - What type of package does the AD8217BRMZ come in?
The device is available in an 8-lead MSOP package. - What is the operating temperature range of the AD8217BRMZ?
The operating temperature range is from -40°C to 125°C. - Does the AD8217BRMZ require an additional power supply?
No, it includes an internal LDO that allows it to power directly from the high voltage rail. - What is the typical common-mode rejection ratio (CMRR) of the AD8217BRMZ?
The typical CMRR is 100 dB at dc. - What are some common applications of the AD8217BRMZ?
Applications include high side current sensing, telecom power management, base stations, unidirectional motor control, and precision high voltage current sources. - What is the gain of the AD8217BRMZ?
The device has a set gain of 20 V/V. - What is the accuracy of the AD8217BRMZ?
The accuracy is ±0.1%, with a maximum gain error of ±0.35%. - Is the AD8217BRMZ RoHS compliant?
Yes, the AD8217BRMZ is RoHS compliant and lead-free.
